Impregnated bit with pdc cutters in cone area,申请号GB20040005546-传众专利搜索

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发明名称	Impregnated bit with pdc cutters in cone area
摘要
申请公布号	GB0405546(D0)	申请公布日期	2004.04.21
申请号	GB20040005546	申请日期	2000.11.29
申请人	BAKER HUGHES INCORPORATED	发明人
分类号	E21B10/46;E21B10/54;E21B10/55;E21B10/56;E21B10/60	主分类号	E21B10/46
代理机构		代理人
主权项
地址

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